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Ch9LifeDevelopment

Chapte 9 life development

QuestionAnswer
Developmental Psychologists divide the lifespan into: eight age-related stages of development
In terms of development, a critical period: is a period during which a child is maximally sensitive to environmental influences.
A gene encodes the instructions for: a specific combination of amino acids that form a particular protein molecule.
Which of the following BEST describes a gene? a unit of DNA on a chromosome that encodes instructions for making a particular protein.
A unit of DNA on a chromosome that encodes instructions for making a particular protein molecule is the definition of: a gene
Genes make up _____ of human DNA. Less than 2 percent
Your unique genotype is found in the chromosomes of every cell in your body, except for your reproductive cells (sperm or eggs).
Michelle has freckles. It is likely that she inherited: a dominant version of the “freckles” gene from either or both of her biological parents.
Which of the following statements is TRUE? To be “freckle free” you would have to inherit two recessive “no-freckles” genes, one from each biological parent.
One problem with the genotype-as-a-blueprint analogy is that: environmental factors influence the actual phenotype displayed.
Because different genotypes react differently to environmental factors, psychologists and other scientists speak of ____ to develop in a particular way. The genetic predisposition
People with a particular genetic configuration will be more or less sensitive to particular environmental factors. This is referred to as a person’s ____ to develop in a particular way genetic predisposition
Unlike Donna, who usually gets a nice tan when exposed to sunlight, Derek has a tendency to sunburn easily. Donna and Derek obviously have different sensitivities to the same environmental factor. This example illustrates their different ____. Genetic predispositions
Humans carry all of the genes necessary to develop a tail but we typically don’t develop tails because: those genes are never activated
Epigenetics refers to: the study of the mechanisms that control gene expression and its effect on behavior and health
In addition to interactions among genes, and between genotype and environmental influences, another crucial factor in the relationship between genotype and phenotype is: that genes can mutate or spontaneously change from one generation to the next.
Which of the following is NOT listed as important in considering the relationship between genotype and phenotype? Epigenetic changes determine how an individual’s genetic blueprint directs and controls all aspects of development as it unfolds over the lifespan.
During the germinal period: the zygote becomes implanted on the mother’s uterine wall.
Shannon is in the seventh week of her pregnancy. In terms of prenatal development, Shannon’s pregnancy is in the ____ period. Embryonic
During the embryonic period, the: organs and major systems of the body form
Which of the following is TRUE of the placenta? It prevents the mother’s blood from mixing with the blood of the developing embryo and fetus.
When does a fetus double in weight, gaining an additional three to four pounds of body fat? During the last two months of the fetal period
Heather is in her fifth month of a healthy pregnancy and sometimes she can feel the fetus moving, a common experience during this period called: quickening
As a general rule, the greatest vulnerability to ____ occurs during the ____ period of prenatal development teratogens
By the third w week after conception, a sheet of primitive neural cells have formed: a hollow tube called the neural tube.
Monika read in her textbook that during the peak periods of brain development in the prenatal period, new cells are being generated at the rate of ____ per minute. 250,000
As the neural tube expands during development, it develop cavities, called ____, that are found at the core of the fully developed brain and are filled with cerebrospinal fluid. Ventricles
The fetal brain is constantly changing, forming as many as 2 million synaptic connections per second. By the ____ month of prenatal development, the fetus has all the brain cells it will have at birth. Fifth
Sarah gave birth to a full-term healthy baby boy who weighed just over 9 pounds. Assuming that the infant is normal, his brain will be about ____ the size of an adult human brain and will weigh about ____. One-quarter
Janeen touches her newborn’s cheek. Her baby turns toward Janeen’s hand and opens her mouth. Janeen has triggered which reflex? The rooting reflex
Two crucial factors in the relationship between genotype and phenotype are interactions among genes, and interactions between genotype and environmental influences.
Created by: kennacoconut